Description: 【Ergonomic Handle】Ring Sizer Measuring Tool features a grooved, non slip, bamboo joint styled handle for comfortable and secure control during jewelry adjustment 【Smooth Surface】Ring Sizing Mandre with smooth surface protects delicate or intricate ring designs from scratches and damage while reshaping or resizing 【Steel Sizing Adjuster】Solid Ring Mandrel equipped with black rubber ring, made of steel for long term performance, making it easy to handle for at home jewelry repairs and adjustment 【Jewelry Rubber Mallet Included】: Detachable Double Head Jewelry Rubber Mallet,  for fine tuning of details, a practical tool 【Applications】Ring Shaper Jewelry Making Kit can use this for multi purposes like measuring, forming, sizing, holding, shaping rings, and jewelry repairing work, ect., for adults, men and women who want to DIY their own jewelry at home Size Chart: Ring Sizing Mandrel: 27cmx2.35cm/10.63inchx0.93inch Jewelry Rubber Mallet: 24cmx6.1cm/9.45inchx2.40inch Package Includes: 1 Ring Sizer Measuring Tool 1 Jewelry Rubber Mallet Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.